Toyota Tacoma 2015-2018 Service Manual: Road Test

The dynamic radar cruise control system has 2 cruise control modes:
constant speed control mode and vehicle-to-vehicle distance control mode.

Vehicle-to-vehicle distance control mode is selected by default when
the dynamic radar cruise control system is turned on using the cruise control
main switch.

(a) Inspect the SET function.

*a

ON-OFF

*b

-SET

(1) Turn the dynamic radar cruise control system on using the cruise control
main switch (ON-OFF button).

(2) Check that the cruise control indicator light illuminates in the combination
meter assembly.

(3) Drive at a speed between approximately 50 km/h (31 mph) and 180 km/h (110
mph).

(4) Push the cruise control main switch to -SET.

*1

Cruise Control Indicator

(Vehicle-to-vehicle Distance Control Mode)

*2

Cruise Control SET Indicator

(5) Check that the cruise control indicator remains illuminated, the cruise control
SET indicator illuminates in the combination meter assembly and the set speed is
displayed on the multi-information display.

(6) After releasing the switch, check that the vehicle maintains the set speed.

(b) Inspect the + (ACCEL) function.

(1) Turn the dynamic radar cruise control system on using the cruise control
main switch (ON-OFF button).

*a

ON-OFF

*b

-SET

(2) Drive at a speed between approximately 50 km/h (31 mph) and 180 km/h (110
mph).

(3) Push the cruise control main switch to -SET.

(4) Constant speed control mode:

Check that vehicle speed increases while the cruise control main switch is pushed
to +/RES, and that the vehicle maintains the newly set speed when the switch is
released.

Vehicle-to-vehicle distance control mode:

Check that the vehicle speed increases in increments of approximately 1 km/h
(or 1 mph)* or 5 km/h (or 5 mph) while the cruise control main switch is pushed
to +/RES and that the vehicle maintains the newly set speed when the switch is released.

*: for USA

*a

+RES

(5) Push the cruise control main switch to +RES and then release it immediately.
Check that the vehicle speed increases* (tap-up control).

HINT:

*: Constant speed control mode: increases by approximately 1 km/h or 1 mph; vehicle-to-vehicle
distance control mode: increases by approximately 1 km/h or 1 mph.

(c) Inspect the - (COAST) function.

(1) Turn the dynamic radar cruise control system on using the cruise control
main switch (ON-OFF button).

*a

ON-OFF

*b

-SET

(2) Drive at a speed between approximately 50 km/h (31 mph) and 180 km/h (110
mph).

(3) Push the cruise control main switch to -SET.

(4) Constant speed control mode:

*a

-SET

Check that vehicle speed decreases while the cruise control main switch is pushed
to -/SET, and that the vehicle maintains the newly set speed when the switch is
released.

Vehicle-to-vehicle distance control mode:

Check that the vehicle speed decreases in increments of approximately 1 km/h
(or 1 mph)* or 5 km/h (or 5 mph) while the cruise control main switch is pushed
to -/SET and that the vehicle maintains the newly set speed when the switch is released.

*: for USA

(5) Push the cruise control main switch to -SET, and then release it immediately.
Check that the vehicle speed decreases* (tap-down control).

HINT:

*: Constant speed control mode: decreases by approximately 1 km/h or 1 mph; vehicle-to-vehicle
distance control mode: decreases by approximately 1 km/h or 1 mph.

*a

ON-OFF

*b

-SET

(d) Inspect the CANCEL function.

(1) Turn the dynamic radar cruise control system on using the cruise control
main switch (ON-OFF button).

(2) Drive at a speed between approximately 50 km/h (31 mph) and 180 km/h (110
mph).

(3) Push the cruise control main switch to -SET.

(4) When any of the following are performed, check that control of vehicle speed
by the dynamic radar cruise control system is canceled and that the normal driving
mode (no control of vehicle speed by the dynamic radar cruise control system) resumes.

*a

CANCEL

Depressing the brake pedal.

Moving the shift lever from D or S to any other position.

Selecting the S3, S2 or S1 range with the shift lever in S.

Pulling the cruise control main switch to CANCEL

Turning the dynamic radar cruise control system off using the cruise
control main switch (ON-OFF button) (The stored vehicle speed in the ECM
is not maintained.).

(e) Inspect the RES (RESUME) function.

(1) Turn the dynamic radar cruise control system on using the cruise control
main switch (ON-OFF button).

*a

ON-OFF

*b

-SET

(2) Drive at a speed between approximately 50 km/h (31 mph) and 180 km/h (110
mph).

(3) Push the cruise control main switch to -SET.

(4) Cancel control of vehicle speed by the dynamic radar cruise control system
by performing any of the CANCEL functions (other than turning the dynamic radar
cruise control system off using the cruise control main switch (ON-OFF button)).

(5) Push the cruise control main switch to +RES while driving the vehicle at
a speed of more than approximately 40 km/h (25 mph), and check that the vehicle
resumes the speed set prior to cancellation and that the cruise control SET indicator
illuminates.

HINT:

The stored vehicle speed is retained even if vehicle speed drops below approximately
40 km/h (25 mph). The previously stored vehicle speed can be resumed by pushing
the cruise control main switch to +RES when the vehicle speed has returned to approximately
40 km/h (25 mph) or more.

Removal
REMOVAL
PROCEDURE
1. DRAIN AUTOMATIC TRANSMISSION FLUID
(a) Remove the drain plug and gasket from the automatic transmission
assembly and drain the ATF.
(b) Install a new gasket and the drain plug to the automatic transmission assembl ...

Dtc Check / Clear
DTC CHECK / CLEAR
HINT:
When using the Techstream with the engine switch off to troubleshoot:
Connect the Techstream to the DLC3 and turn a courtesy light switch on and
off at 1.5 second intervals until communication between the Techstream and
vehicle begins.
Refer to the T ...